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Tech riderRev. 2 Oct 2026

ClownMDEmu

Ch 047.3of 29 Sega Genesis Emulators
  1. 1Runs onLinux, Mac, self-hosted, Web, Windows
  2. 2CostsFree plan
  3. 3Save statesYes
3 lines stated Written from the maker's own pages: github.com
Visit site Alternatives
The ClownMDEmu homepage

Overview

ClownMDEmu is ranked #4 of 29 in Sega genesis emulators on Specifiction. It runs on Linux, macOS, Self-hosted, Web, Windows. There is a free plan.

ClownMDEmu plans and pricing

All plans
ClownMDEmu Free Free software · AGPLv3 or later github.com · 2 Oct 2026

Compared on Sega genesis emulators

Free plan
Yesgithub.com
Save states
Yesgithub.com

Facts

Purpose
ClownMDEmu is an emulator for the Sega Mega Drive, also known as the Sega Genesis.github.com · 2 Oct 2026
Core design
The repository contains a self-contained emulation core designed for portability and implemented as a library.github.com · 2 Oct 2026
Browser version
The maker links to a web browser version that can be tried online.github.com · 2 Oct 2026
Standalone frontend
An official standalone frontend includes debugging menus and is written in C++20 using SDL3 and Dear ImGui.github.com · 2 Oct 2026
Libretro integration
An official frontend exposes ClownMDEmu as a libretro core for use with libretro implementations such as RetroArch and clownlibretro.github.com · 2 Oct 2026
Build
The core can be built using CMake, and its repository notes that Git submodules must be initialized before compiling.github.com · 2 Oct 2026
Portability
The core targets C89, integer-only logic, no dynamic memory, no global state, and code that avoids undefined or implementation-defined behavior.github.com · 2 Oct 2026
Save-state design
The core keeps state in a relocatable struct without pointers, which the maker says supports simple fast save states and the possibility of multiple emulator instances.github.com · 2 Oct 2026
Audio and video output
The core outputs FM and PSG audio separately at native sample rates and video one scanline at a time in indexed format.github.com · 2 Oct 2026
Performance and accuracy
The maker says the emulator balances correctness with performance and may be more high-level than accuracy-focused alternatives.github.com · 2 Oct 2026
Incomplete emulation
The maker notes that some standard Mega Drive features remain unemulated; the TODO lists incomplete 68k exceptions and unimplemented reset instruction and VDP rendering features.github.com · 2 Oct 2026
License
ClownMDEmu is free software licensed under the AGPLv3 or any later version.github.com · 2 Oct 2026
Maintainer
The GitHub maintainer profile describes Clownacy as a programming professional and Mega Drive hobbyist and lists England as the location.github.com · 2 Oct 2026

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Where it ranks on Specifiction

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Sources